void setup() {
  // put your setup code here, to run once:
  pinMode(PA6,OUTPUT);
  Serial.begin(115200);
  Serial.println('Start');
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0;i<500;i=(i+5)%500){
    analogWrite(PA6,i);
    Serial.println(i);
    delay(1000);
  }
}
